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vendors/animate.css/gulpfile.js

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+// Utilities
+var fs = require('fs');
+
+// Gulp
+var gulp = require('gulp');
+
+// Gulp plugins
+var gutil = require('gulp-util');
+var concat = require('gulp-concat');
+var header = require('gulp-header');
+var autoprefixer = require('gulp-autoprefixer');
+var runSequence = require('run-sequence');
+var minify = require('gulp-cssnano');
+var rename = require('gulp-rename');
+
+// Misc/global vars
+var pkg = JSON.parse(fs.readFileSync('package.json'));
+var activatedAnimations = activateAnimations();
+
+// Task options
+var opts = {
+  destPath: './',
+  concatName: 'animate.css',
+
+  autoprefixer: {
+    browsers: ['last 2 versions'],
+    cascade: false
+  },
+
+  minRename: {
+    suffix: '.min'
+  },
+
+  banner: [
+    '@charset "UTF-8";\n',
+    '/*!',
+    ' * <%= name %> -<%= homepage %>',
+    ' * Version - <%= version %>',
+    ' * Licensed under the MIT license - http://opensource.org/licenses/MIT',
+    ' *',
+    ' * Copyright (c) <%= new Date().getFullYear() %> <%= author.name %>',
+    ' */\n\n'
+  ].join('\n')
+};
+
+// ----------------------------
+// Gulp task definitions
+// ----------------------------
+
+gulp.task('default', function() {
+  runSequence('createCSS', 'addHeader');
+});
+
+gulp.task('createCSS', function() {
+  return gulp.src(activatedAnimations)
+    .pipe(concat(opts.concatName))
+    .pipe(autoprefixer(opts.autoprefixer))
+    .pipe(gulp.dest(opts.destPath))
+    .pipe(rename(opts.minRename))
+    .pipe(minify({reduceIdents: {keyframes: false}}))
+    .pipe(gulp.dest(opts.destPath));
+});
+
+gulp.task('addHeader', function() {
+  return gulp.src('*.css')
+    .pipe(header(opts.banner, pkg))
+    .pipe(gulp.dest(opts.destPath));
+});
+
+// ----------------------------
+// Helpers/functions
+// ----------------------------
+
+// Read the config file and return an array of the animations to be activated
+function activateAnimations() {
+  var categories = JSON.parse(fs.readFileSync('animate-config.json')),
+    category, files, file,
+    target = [ 'source/_base.css' ],
+    count = 0;
+
+  for (category in categories) {
+    if (categories.hasOwnProperty(category)) {
+      files = categories[category];
+
+      for (var i = 0; i < files.length; ++i) {
+        target.push('source/' + category + '/' + files[i] + '.css');
+        count += 1;
+      }
+    }
+  }
+
+  if (!count) {
+    gutil.log('No animations activated.');
+  } else {
+    gutil.log(count + (count > 1 ? ' animations' : ' animation') + ' activated.');
+  }
+
+  return target;
+}